AGP or PCI Card Detection

#!/bin/bash

# Check if the user is running this script as root
if [ "$EUID" -ne 0 ]
  then echo "Please run as root"
  exit
fi

# Autodetect the kind of video card in the system
if lspci | grep -i "vga compatible controller: NVIDIA" > /dev/null; then
    echo "NVIDIA video card detected"
    driver="nvidia"
    if lspci | grep -i "agp" > /dev/null; then
        echo "AGP video card detected"
        agp=true
    else
        echo "PCI video card detected"
        agp=false
    fi
elif lspci | grep -i "vga compatible controller: ATI" > /dev/null; then
    echo "ATI video card detected"
    driver="fglrx"
    if lspci | grep -i "agp" > /dev/null; then
        echo "AGP video card detected"
        agp=true
    else
        echo "PCI video card detected"
        agp=false
    fi
else
    echo "Unsupported video card"
    exit 1
fi

# Load the drivers
modprobe $driver

# Start an OpenGL diagnostic test
glxgears

# Use the agp variable to perform actions specific to AGP or PCI cards
if [ "$agp" = true ]; then
    # Actions specific to AGP cards
    echo "Performing actions specific to AGP cards"
else
    # Actions specific to PCI cards
    echo "Performing actions specific to PCI cards"
fi